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Dew Heaters

After a dewy FallNStars star party weekend it was time to go back and start working on making work all of the various dew heating bits and pieces we have laying around.

I found a bag of heaters, and a mouse nest. Got rid of the mouse nest and discovered a hole in the middle of the 40″ heater, mainly the felt
cover with a few nibbles on the heater as well. And on another 6″ heater, the end velcro strap was totally gone.

So.. All of these items are now stored inside a plastic bin. Yes, I know this will not stop the mouse built it will slow him down.. and I will be
able to see inside and if I see him, wave a goodbye! Will repair these two in the next few days.

So, a kendrick 40″ strap will work on a 12″ diameter telescope (C=D*Pi) D=C/Pi=40/3.14 = 12.7″

The 19″ strap (19/3.14=6) is good for a 6″ diameter telescope and the 6″ is good (6/3.14=1.9) for a 1.25″ eyepiece.

Resistance wise, the 6″=52 ohms, the 19″ is 9.4 ohms and the 40″ is 5.2 ohms